Schools in San Ildefonso, Ilocos Sur

By Mark Anthony Llego · Published 1 November 2026 · Updated 3 November 2026

SY 2024-25 data from DepEd as of 25 October 2025

Summary

In San Ildefonso, Ilocos Sur, public schools have the most learners per teacher of the 34 cities and municipalities in the province. Its six schools held 1,776 learners in SY 2024-25, with another 12 in ALS, and its public schools had 56 teachers. Enrollment in its schools rose 0.9% from SY 2023-24, with ALS not counted.

The largest school is Philippine Science High School-Ilocos Region Campus with 661 learners, followed by Busiing Integrated School with 404 and Sagsagat Elementary School with 257. Leaving out one school whose figures are under review, the most crowded public classrooms are at Busiing Integrated School, where there is one classroom for every 24 learners. All five of its reporting public schools have electricity, water and internet.

The page lists its six schools with their learners, teachers and classrooms, and shows the figures by sector and level in charts and tables.

Schools: 6; No change from SY 2023-24; 6 public
Community learning centers: 3; No change from SY 2023-24
Learners: 1,788; Up 13 from SY 2023-24
Teachers: 56; Down 67 from SY 2023-24
Classrooms: 56; Down 19 from SY 2023-24

Key findings

For SY 2024-25 and all schools, whatever is chosen above.

San Ildefonso has the 24th most learners of the 34 cities and municipalities in Ilocos Sur, and the most learners per teacher in public schools.
Enrollment in schools rose 0.9% from SY 2023-24 (ALS not counted).
The largest schools are Philippine Science High School-Ilocos Region Campus (661 learners), Busiing Integrated School (404 learners) and Sagsagat Elementary School (257 learners).
Leaving out 1 school whose figures are under review, the most crowded public classrooms are at Busiing Integrated School, with 24 learners per classroom.
Of the 5 reporting public schools, all have electricity; all have water; all have internet.
The 5 public schools here with FY 2025 MOOE received ₱3.7 million. Across the 5 with FY 2024 MOOE and SY 2024-25 learners, FY 2024 MOOE came to ₱2,713 for each learner.

Learners

SY 2024-25: 1,788 learners, 1,776 in schools and 12 in community learning centers.

Learners, SY 2024-25
Learners	Number
All learners	1,788
In schools	1,776
In community learning centers (ALS)	12
Male	898
Female	890

Learners by level and sector, SY 2024-25

Learners by level and sector, SY 2024-25
Level	Public schools	Community learning centers (ALS)	Total
Elementary	759	0	759
Junior High School	740	0	740
Senior High School	277	0	277
ALS A&E secondary	0	12	12

Learners by grade and sex, SY 2024-25

Learners by grade and sex, SY 2024-25
Grade	Male	Female	Total
Kindergarten	48	38	86
Grade 1	47	52	99
Grade 2	54	38	92
Grade 3	54	50	104
Grade 4	59	72	131
Grade 5	50	51	101
Grade 6	76	70	146
Grade 7	102	94	196
Grade 8	78	91	169
Grade 9	86	103	189
Grade 10	102	84	186
Grade 11	75	78	153
Grade 12	60	64	124
ALS A&E secondary	7	5	12
All grades	898	890	1,788

Senior High School learners by track, SY 2024-25

Senior High School learners by track, SY 2024-25
Track	Learners
Academic	277
All tracks	277

Indigenous peoples (IP) learners by level and sex, SY 2024-25
Level	Male	Female	Total
Elementary	1	0	1
Junior High School	3	2	5
Senior High School	0	1	1
All	4	3	7

Schools and community learning centers

SY 2024-25: 6 schools and 3 community learning centers.

Schools and community learning centers by sector, SY 2024-25

Schools and community learning centers by sector, SY 2024-25
Sector	Number
Public schools	6
Community learning centers (ALS)	3
All	9

Schools by curricular offering, SY 2024-25

Schools by curricular offering, SY 2024-25
Offering	Number
Elementary only	3
Elementary and junior high (K to 10)	1
Junior and senior high	2
Community learning centers (ALS)	3

Schools by subclassification, SY 2024-25
Subclassification	Number
DepEd managed	5
Community learning centers (ALS)	3
DOST managed	1

School personnel

SY 2024-25: 56 teachers and 16 non-teaching personnel in public schools.

Public school personnel by type, SY 2024-25
Type	Number
Teachers	56
Non-teaching personnel	16
All personnel	72

Public school teachers by level, SY 2024-25

Public school teachers by level, SY 2024-25
Level	Teachers
Elementary	39
Junior High School	13
Senior High School	4
All teachers	56

Learners per teacher by level, public schools, SY 2024-25

Learners per teacher by level, public schools, SY 2024-25
Level	Learners per teacher
Elementary	19.5
Junior High School	56.9
Senior High School	69.3

School resources

SY 2024-25: 56 classrooms and 73 toilets in public schools.

Classrooms: 56
Seats (approximate): 998
Toilets: 73
Functional computers: 200
Faucets: 290; 269 with water

Classrooms, seats, toilets and computers by level, public schools, SY 2024-25: shares of each by level

Classrooms, seats, toilets and computers by level, public schools, SY 2024-25, with learners per resource
Measure	Elementary	Junior High School	Senior High School
Classrooms	42	11	3
Learners per classroom	18.1	67.3	92.3
Seats (approximate)	724	243	31
Learners per seat	1.1	3.1	8.9
Toilets	60	11	2
Learners per toilet	12.7	67.3	138.5
Functional computers	83	115	2
Learners per computer	9.1	6.4	138.5

Public schools with a water supply, by level, SY 2024-25

Public schools with a water supply, by level, SY 2024-25: number of schools
Level	With water supply	Without
Elementary	4	0
Junior High School	2	0
Senior High School	1	0

Public schools by electricity supply and level, SY 2024-25

Public schools by electricity supply and level, SY 2024-25: number of schools
Level	Grid supply
Elementary	4
Junior High School	2
Senior High School	1

Public schools with internet access, by level, SY 2024-25

Public schools with internet access, by level, SY 2024-25: number of schools
Level	With internet access	Without
Elementary	4	0
Junior High School	2	0
Senior High School	0	1

Toilets in public schools by type, SY 2024-25

Toilets in public schools by type, SY 2024-25
Type	Toilets
Female	11
Male	10
Shared	48
For persons with disabilities	4
All toilets	73

Faucets in public schools, with and without water, SY 2024-25

Faucets in public schools, with and without water, SY 2024-25
Faucets	Number
With water	269
Without water	21
All faucets	290

Public schools with each facility, SY 2024-25
Facility	Schools
Canteen	5
Computer Room	5
Entrance Gate	5
Offices	5
Playground	5
School Garden	5
Covered Court	4
Exit Gate	4
Clinic	3
Library/Learning Resource Center	3
Permanent Perimeter Fence	3
Temporary Perimeter Fence	3
Faculty Room	2
Home Economic Room	2
Science Laboratory	2
Conference Room	1
Industrial Arts Room	1
Museum	1
Paved Pathway	1
Solar Panel	1

List of schools

Every school in San Ildefonso, Ilocos Sur in DepEd's data, linked to its own page.

Schools in San Ildefonso, Ilocos Sur: 6 schools, each with its own latest school year's figures
School	Learners	Teachers	Classrooms
Belen National High School	228	14	9
Bungro Elementary School	125	8	8
Busiing Integrated School	404	15	17
Philippine Science High School-Ilocos Region Campus	661	Not reported	Not reported
Sagsagat Elementary School	257	11	14
San Ildefonso Central School	101	8	8

About this data

Teachers, classrooms and facilities are for public schools only: DepEd's public report has them for no other schools.

Each school year's figures for San Ildefonso, Ilocos Sur count the schools DepEd placed there that year. Figures come from DepEd's school data for SY 2023-24 and SY 2024-25 as of 25 October 2025. How the data was checked

Report a correction to the figures for San Ildefonso, Ilocos Sur